101221120011210 has 16 divisors (see below), whose sum is σ = 242930688026976. Its totient is φ = 26992298669648.

The previous prime is 101221120011203. The next prime is 101221120011307. The reversal of 101221120011210 is 12110021122101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 101221120011210.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1687018666824 + ... + 1687018666883.

It is an arithmetic number, because the mean of its divisors is an integer number (15183168001686).

Almost surely, 2^{101221120011210} is an apocalyptic number.

101221120011210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101221120011210 is an abundant number, since it is smaller than the sum of its proper divisors (141709568015766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101221120011210 is a wasteful number, since it uses less digits than its factorization.

101221120011210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3374037333717.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 101221120011210 its reverse (12110021122101), we get a palindrome (113331141133311).

The spelling of 101221120011210 in words is "one hundred one trillion, two hundred twenty-one billion, one hundred twenty million, eleven thousand, two hundred ten".